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From: George Bosilca (bosilca_at_[hidden])
Date: 2007-10-26 11:20:58

The cleaner way to define such an environment is by using the max-
slots and/or slots options in the hostfile. Here is a FAQ entry about
how Open MPI deal with these options (


On Oct 26, 2007, at 10:52 AM, Jeff Pummill wrote:

> I am doing some testing on a variety of 8-core nodes in which I
> just want to execute a couple of executables and have them
> distributed to the available cores without overlapping. Typically,
> this would be done with a parameter like -machinefile machines, but
> I have no idea what names to put into the machines file as this is
> a single node with two quad core cpu's. As I am launching the jobs
> sans scheduler, I need to specify what cores to run on I would
> think to keep from overscheduling some cores while others receive
> nothing to do at all.
> Simple suggestions? Maybe Open MPI takes care of this detail for me?
> Thanks!
> Jeff Pummill
> _______________________________________________
> users mailing list
> users_at_[hidden]

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